Ecom-instruments Ex-Pt 720 Bedienungsanleitung Seite 8
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(13) Appendix
(14) EC – Type approval test certificate No. TÜV 01 ATEX 1757 X
(15) Description of the equipment
The explosion-protected temperature measurement unit Type Ex-Pt 720* may be used in
explosion-endangered areas which require category 2 or 3 respectively. The sensors
which are specially mentioned in the operating instructions may be used for the measure
ment of temperatures in category 1.
The permissible ambient temperature range is 0°C to +50°C.
Electrical data
Power supply one block battery as per IEC 6LR61 or 6F22
(internal battery) U = 9V
Only batteries which have satisfied the type–testing in accordance with section 10.9 of
EN 50020:1994 are allowed to be used. The manufacturers and their type numbers are
listed in the operating instructions.
(16) Test documentation is listed in test report No. YEX 137383.
(17) Special conditions
The temperature measuring unit Type Ex-Pt 720* may not be opened within the explosion-
endangered area.
The version with the type designation EX-Pt 720L may only be used within explosion-
endangered areas when it is enclose in the leather case which is supplied with it.
In addition, the following applies to the measurement of temperatures within
category 1:
The temperature measuring unit Type Ex-Pt 720* itself may not be taken into areas which
require category 1 operating equipment. Only the sensors listed in the operating instruc
tions as being suitable for category 1 may be used.
The carrying strap of the unit is to be attached to a loop on the user’s belt in such a way
that when the unit hangs freely on the strap it always maintains a spacing of > 50 cm from
the boundary of the area which requires category 1. Only the manufacturer’s carrying
strap may be used.
(18) Fundamental safety and health requirements
No additional ones.
1st Supplement
to
EC – Type approval test certificate No. TÜV 01 ATEX 1757
The company: ecom instruments GmbH
Industriestrasse 2
D-97959 Assamstadt
In the future, the explosion-protected temperature measuring instrument Type Ex-Pt 720*
may be manufactured in accordance with the documentation listed in the test report. The
changes are concerned with the external design and the use of further sensors.
The permissible ambient temperature is dependent on the type as shown in the following
table:
Type Permissible ambient temperature range
Ex-Pt 720 L 0°C to +50°C
Ex-Pt 720 -10°C to +50°C
The electrical data are valid without change for this supplement.
(16) Test documentation is listed in test report No. 02 YEX 164755.
(17) Special conditions
The temperature measuring unit Type Ex-Pt 720* may not be opened within the explosion-
endangered area. The version with the type designation EX-Pt 720L may only be used
within explosion-endangered areas when it is enclose in the leather case which is supp
lied with it.
In addition, the following applies to the measurement of temperatures within explosion-
endangered areas which need category 1 equipment:
The temperature measuring unit Type Ex-Pt 720* itself may not be taken into areas which
require category 1 equipment. Only the sensors listed in the operating instructions as
being suitable for category 1 may be used.
The carrying strap of the unit is to be attached to a loop on the user’s belt in such a way
that when the unit hangs freely on the strap it always maintains a spacing of > 50 cm from
the boundary of the area which requires category 1. Only the manufacturer’s carrying
strap may be used.
(18) Fundamental safety and health requirements
No additional ones.
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